SCIENTIFIC AMERICAN, New York, Aug. 4, 1877 

* Brooklyn Bridge - East River
* Under construction print

The front page features two prints & an article: "Cable Making of the East River Bridge" which we now know as the Brooklyn Bridge. The balance of the issue is taken up with reports of other inventions and scientific/mechanical improvements. Also included: "The Sea Monster" with two illustrations of it.
Sixteen pages, very nice condition.